KXT-CG-1型超高温钻孔轨迹测量仪的应用研究  

Application research of KXT-CG-1 drilling trajectory measuring instrument for ultra high temperature

作　　者：彭新明 季伟峰[2] 李忠[2] 邓启江 孔祥军 沈鹏飞 PENG Xinming;JI Weifeng;LI Zhong;DENG Qijiang;KONG Xiangjun;SHEN Pengfei(Beijing Institute of Ecological Geology,Beijing 100120,China;Institute of Exploration Technology,CAGS,Chengdu 610081,China;Yunnan Geological Engineering Survey and Design Research Institute Limited Company,Kunming 650041,China;Beijing Institute of Geothermal Research,Beijing 102206,China)

机构地区：[1]北京市生态地质研究所,北京100120 [2]中国地质科学院探矿工艺研究所,成都610081 [3]云南地质工程勘察设计研究院有限公司,昆明650041 [4]北京市地热调查研究所,北京102206

出　　处：《地质装备》2024年第2期27-33,共7页Equipment for Geotechnical Engineering

基　　金：国家重大科学仪器设备开发专项项目(编号:2013YQ050791)。

摘　　要：KXT-CG-1型超高温钻孔轨迹测量仪在北京、云南、黑龙江、青海等地区地热井、科学钻探井等的应用解决了高温环境钻探施工轨迹测量问题,形成了超高温钻孔轨迹野外测量解决方案和工艺规程。该仪器在满足测斜的基础上增加了井温的测量,适用于高温地热井、干热岩钻探等高温环境下的测温需求,在地表模拟270℃条件下可以连续工作4 h,这对于高温环境下的钻孔轨迹测量是有力的技术支撑。本文通过对比分析不同钻井现场的试验测量数据,可知KXT-CG-1型超高温钻孔轨迹测量仪具有集成度高、技术先进、测量精度高、辅助器具少以及结构轻便的特征,其中顶角测量精度0.15°,方位角测量精度1.5°。The KXT-CG-1 drilling trajectory measuring instrument for ultra-high temperature has been applied in geothermal wells and scientific drilling wells in Beijing,Yunnan,Heilongjiang,Qinghai and other regions.The problem of drilling trajectory measuring in high temperature environment has been solved,and the field measuring solution and process specification of ultra-high temperature borehole trajectory have been formed.This instrument added well temperature measurement based on meeting the requirements of inclination measurement,and is suitable for temperature measurement in high-temperature environments such as geothermal wells and hot dry rock drilling,and can operated continuously for 4 hours under simulated surface conditions of 270℃,which provides strong technical support for drilling trajectory measurement in high-temperature environments.This paper compares and analyzes the experimental measurement data of different drilling sites,and finds that the KXT-CG-1 drilling trajectory measuring instrument for ultra-high temperature has the characteristics of high integration,advanced technology,high measurement accuracy,few auxiliary tools and lightweight structure.The measuring accuracy of inclination and azimuth is 0.15°and is 1.5°respectively.

关 键 词：超高温钻孔 轨迹测量 井温测量 

分 类 号：P634.7[天文地球—地质矿产勘探]